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Aspect Ratio calculator
Aspect Ratio calculator
Enter your values below and press Calculate to see your result instantly.
Resolution Scale (Pixels)
x
Calculated Ratio
16:9
New Scaled Target (Fill one to calculate the other)
x
Computed Result
Synced
DECIMAL MULTIPLIER
1.777x
INDUSTRY STANDARD
Widescreen
The ratio calculates successfully.
About the Aspect Ratio calculator
Keep the correct proportions when resizing images, videos and screens by calculating the missing width or height.
How to use the Aspect Ratio calculator
- Enter the original Width (W1) and Height (H1).
- Enter the New Width (W2) or New Height (H2).
- Press Calculate to get the other dimension.
Formula and method
W1 ÷ H1 = W2 ÷ H2, so H2 = W2 × H1 ÷ W1.
Worked example
A 1280 × 720 image (16:9) resized to 1920 wide must be 1080 high.
Tips
- Common ratios are 16:9 (video), 4:3 (older screens), 1:1 (square) and 9:16 (vertical video).
- Cropping changes the ratio, while scaling keeps it.
Frequently Asked Questions
Divide both dimensions by their greatest common factor. 1920 × 1080 reduces to 16:9.